Rubik's TouchCube with Touch Sensor for $19.99.  Order online to lock in the price and select in-store pickup at Best Buy to save on shipping.  Otherwise, shipping is $5.49 for a total of 25.48 shipped.  Here is a screenshot for your reference.  It features touch sensor technology, motion-detecting accelerometer, and is rechargeable and includes a built-in solver.  Here is a video demo to show how it works.  Most places have it for about $67 or much more.